Lab Exam 1: Lab 3- Neuroanatomy

What are the 6 cranial bones & which are paired?

Parietal- 2

Ethmoid

Sphenoid

Temporal- 2

Occipital

Frontal

What are the 8 different facial bones & which are unpaired?

lacrimal

zygomatic

nasal

inferior nasal conchae

maxilla

palatine

vomer- unpaired

mandible- unpaired

frontal bone

nasal bone

superior orbital fissure

what 4 cranial nerves pass through the superior orbital fissure?

1. CN III- Oculomotor

2. CN IV- Trochlear

3. V1- Ophthalmic Branch of trigeminal nerve

4. CN VI- Abducens

sphenoid

ethmoid

zygomatic

lacrimal

maxilla

inferior nasal conchae

mandible

vomer

frontal

parietal

temporal

occipital

sphenoid

palatine

vomer

sphenoid

Sella turcica “Turkish saddle” of sphenoid bone, holds posterior pituitary gland (master gland)

superior orbital fissure

foramen magnum

what structures pass through the foramen magnum?

spinal cord

CN XII- Accessory (innervates trapezius & sternocleidomastoid) 

vertebral artery

anterior & posterior spinal arteries

cerebellum w/ arbor vitae “tree of life”

-arbor vitae = network of white matter for coordination & balance

1. Dura mater

2. Arachnoid mater

3. pia mater